Cerbo GX Installation
Table Of Contents
- Cerbo GX Manual
- Table of Contents
- 1. Introduction
- 2. Installation
- 2.1. Overview of connections
- 2.2. Power
- 2.3. Connecting Victron products
- 2.3.1. Multis/Quattros/Inverters (VE.Bus products)
- 2.3.2. Battery Monitor BMV-700 series; and MPPTs with a VE.Direct port
- 2.3.3. Skylla-i, Lynx Shunt VE.Can, Lynx Ion + Shunt and MPPTs with a VE.Can port
- 2.3.4. VE.Can and BMS-Can Interfaces
- 2.3.5. BMV-600 series
- 2.3.6. DC Link box
- 2.3.7. VE.Can Resistive Tank Sender Adapter
- 2.4. Connecting a PV Inverter
- 2.5. Connecting a USB GPS
- 2.6. Connecting a Fischer Panda Generator
- 2.7. Connecting Tank Level Sensors
- 2.8. Connecting third-party NMEA 2000 tank senders
- 2.9. Connecting Temperature Sensors
- 2.10. Connecting IMT Solar Irradiance, Temperature and Wind Speed Sensors
- 3. Internet connectivity
- 3.1. Ethernet LAN port
- 3.2. Wi-Fi
- 3.3. GX GSM
- 3.4. Mobile (cellular) network using a 3G or 4G router
- 3.5. USB tethering using a mobile phone
- 3.6. IP Configuration
- 3.7. Connecting both Ethernet and Wi-Fi (failover)
- 3.8. Minimize internet traffic
- 3.9. More information about setting up an internet connection and VRM
- 4. Accessing the GX device
- 5. Configuration
- 6. GX - How to update firmware
- 7. VE.Bus Inverter/charger monitoring
- 8. DVCC - Distributed Voltage and Current Control
- 9. VRM Portal
- 10. Marine MFD integration by App
- 11. Marine MFD integration by NMEA2000
- 12. Digital Inputs
- 13. GX - Generator auto start/stop
- 14. Error Codes
- 15. FAQ
- 15.1. Q1: I cannot switch my Multi/Quattro system on or off
- 15.2. Q2: Do I need a BMV to see proper battery state of charge?
- 15.3. Q3: I have no internet, where can I insert a sim-card?
- 15.4. Q4: Can I connect both a GX Device and a VGR2/VER to a Multi/Inverter/Quattro?
- 15.5. Q5: Can I connect multiple Cerbo GX to a Multi/Inverter/Quattro?
- 15.6. Q6: I see incorrect current (amps) or power readings on my Cerbo GX
- 15.7. Q7: There is a menu entry named "Multi" instead of the VE.Bus product name
- 15.8. Q8: There is a menu entry named "Multi", while there is no Inverter, Multi or Quattro connected
- 15.9. Q9: When I type the ip-address of the Cerbo GX into my browser, I see a web page mentioning Hiawatha?
- 15.10. Q10: I have multiple Solar chargers MPPT 150/70 running in parallel. From which one will I see the relay status in the Cerbo GX menu?
- 15.11. Q11: How long should an automatic update take?
- 15.12. Q12: I have a VGR with IO Extender, how can I replace this with a Cerbo GX?
- 15.13. Q13: Can I use Remote VEConfigure, as I was doing with the VGR2?
- 15.14. Q14: The Blue Power Panel could be powered through the VE.Net network, can I also do that with a Cerbo GX?
- 15.15. Q15: What type of networking is used by the Cerbo GX (TCP and UDP ports)?
- 15.16. Q16: What is the functionality behind the menu item Remote support (SSH), in the Ethernet menu?
- 15.17. Q17: I don’t see support for VE.Net products in the list, is that still coming?
- 15.18. Q18: What is the data usage of the Cerbo GX?
- 15.19. Q19: How many AC Current Sensors can I connect in one VE.Bus system?
- 15.20. Q20: Issues with Multi not starting when Cerbo GX is connected / Caution when powering the Cerbo GX from the AC-out terminal of a VE.Bus Inverter, Multi or Quattro
- 15.21. Q21: I love Linux, programming, Victron and the Cerbo GX. Can I do more?
- 15.22. Q22: How do I change the logo
- 15.23. Q23: Multi restarts all the time (after every 10sec)
- 15.24. Q24: What is Error #42?
- 15.25. GPL Note
- 16. More information
8.4.3. Shared Temperature Sense (STS)
Select the temperature sensor to use; and the GX device will send the measured battery temperature to the Inverter/charger
system as well as all connected Solar Chargers.
Selectable sources for the battery temperature are:
• BMV-702 battery monitor
• BMV-712 battery monitor
• Lynx Shunt VE.Can battery monitors
• Temperature inputs on a Cerbo GX (and same for other GX devices that have a temperature input)
• Multi/Quattro inverter/charger
• Solar Chargers (if fitted with a temperature sensor)
8.4.4. Shared Current Sense (SCS)
This feature forwards the battery current, as measured by a battery monitor connected to the GX device, to all connected solar
chargers.
The solar chargers can be configured to use the battery current for its tail current mechanism that ends absorption when the
current is below the configured threshold. For more information about that, refer to Solar charger documentation.
This feature only applies to systems that are not ESS, and/or don’t have a managed battery, since in both of those cases the
MPPT is already externally controlled.
Requires MPPT solar charger firmware v1.47 or newer.
8.5. DVCC Features when using CAN-bus BMS Battery
This chapter applies to all systems where an intelligent battery BMS is installed, and connected via CAN-bus. Note that this does
not include the Victron VE.Bus BMS.
Such intelligent BMS sends the following parameters to the GX device:
1. Charge voltage limit (CVL): the maximum charge voltage that the battery currently accepts.
2. Charge current limit (CCL): the maximum charge current requested by the battery.
3. Discharge current limit (DCL): the maximum discharge current as requested by the battery.
For all three parameters, some types of batteries transmit dynamic values. For example they determine the maximum charge
voltage based on cell voltages, state of charge, or for example temperature. Other makes and brands use a fixed value.
Here is the page in the menus showing the parameters:
For such batteries, there is no need to wire allow-to-charge and allow-to-discharge connections to the AUX inputs on a Multi or a
Quattro.
When inverting, ie in Island mode, Multis and Quattros will shut down when the max discharge current is zero. They will
automatically start again as soon as either AC mains returns, or when the BMS increases the max discharge current again.
See previous chapter, “Limit charge current”, the user setting, for details about how the Maximum charge current is used, how it
prioritises solar and more.
All above means that setting up charge voltages or charge profiles in VEConfigure or VictronConnect is not necessary, and will
also have no effect. The Multis, Quattros and MPPT Solar Chargers will charge with the voltage as received via CAN-bus from the
battery.
Cerbo GX Manual
Page 45
DVCC - Distributed Voltage and Current
Control